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Finding the Fourth Proportional to 60,288.39, 90,488.40 and 30,728.25

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Solution

The fourth proportional to 60,288.39, 90,488.40 and 30,728.25 is: 46,120.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,288.39 : 90,488.40 = 30,728.25 : x
  2. Step 2: Convert to fraction form
    60,288.39/90,488.40 = 30,728.25/x
  3. Step 3: Cross multiply
    60,288.39x = 90,488.40 × 30,728.25
  4. Step 4: Simplify right side
    60,288.39x = 2,780,550,177.30
  5. Step 5: Solve for x
    x = 2,780,550,177.30/60,288.39
  6. Step 6: Final answer
    x = 46,120.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.